Batman: Year One

Throughout the movie three keychains can be seen.  One used by batman, one by a villain's henchman and one by Jim Gordon.  They are all just basic black fobs.

The Man Who Knew Too Little

Peter Gallagher's character shows off his keychain which appear to be a leather fob with metal medallion. 

Brewster's Millions (1945)

While hoping for good news on the phone Brewster's butler waves a rabbit's foot keychain over the phone for good luck

Total Recall (2012)

Colin Farrel plays quaid/hauser a lowly construction worker who everyday travels on the "fall" which transports him from one side of the earth to the other.  While in the center of the earth he is essentially weightless and a keychain can be seen floating around the room.  It appears to be a glass ball.

The Tourist

Johnny Depp checks into his hotel and the fancy red tasseled room keys can be seen behind the clerk and then handed to Depp.

Bottle Rocket

Owen and Luke Wilson's friend sneaks out of their room with the keys to his car stranding them at the motel.

Sin City

Marv, played by Mickey Rourke, takes a car and has the keys in his hands.  He comments on how the new cars all look the same.  The mercedes key has the logo on it and the electronic fob is attached.

In Time

In this sci fi action movie Justin Timberlake plays a wanted-by-the-police nouveau riche who is staying at fancy hotel.  He is receiving his room key with a fancy green tassel keychain attached. 

Macgruber

Macgruber comes out of retirement to return to the spy game and while he is retrieving his old car his white rabbit's foot keychain steals the spotlight.

Killer Elite

In this spy action movie Dominic Purcell's character is staying at a hotel and he receives his keys to his room in this scene. 

Don't Be a Menace to South Central While Drinking Your Juice in the Hood

Marlon Wayans plays an outrageous character with outrageous hair in this parody of hood movies.  His hair changes constantly throughout the film and in this scene has dice keychains in it.

Highlander

The Kurgan waits and plots to kill the Highlander in a seedy hotel.  The hotel desk clerk stands in front of the room keys and keychains

Paul

Simon Pegg and Nick Frost play sci fi nerds who are taking a road trip in an RV.  They have a star trek keychain as some nerd chic.  The ship is a klingon bird of prey.

Duke Nukem Forever

From the video game Duke Nukem Forever.  One of the weapons in the game is a remotely detonated pipe bomb.  To detonate the bomb Duke pulls out his car remote keychain and presses the button.

Captain America: The First Avenger

The villainous Red Skull is escaping his secret lab with his head scientist.  He gives the scientist the keys to fancy custom car.  His keychain is not coincidentally the Hydra symbol (his secret military group with advanced technology).  It must be due to his vanity. 

I Love You

A very lonely man played by Christopher Lambert finds his true love, it just happens to be a keychain.  The keychain says I love you.  From the obscure French art house movie I love You.

City of Lost Children

A keychain collection belonging to a character that collects things he finds under the water.  The movie is french and so are all the keychains.

Fallout 3

From the video game Fallout 3.  In your menu you have a list of the keys you find.  Of course, they are stored on your keychain. 

Once Upon a Time

The main character's last name is ironically named swan.  There is a swan keychain featured in the show.

La Roux - In for the Kill

In the music video for the song In for the Kill La Roux is driving a car and she has a glass tear drop shaped keychain.

The Adventures of Tintin

Tintin is on the ship trying to get the keys to a storage room as the ship is tossed by waves.  The oval metal keychain is just out of his reach.

Micmacs

In this French Film one of the villain's has his keys on his desk.  He has a leather fob as his keychain.

Finding Forrester

At the end of the film Sean Connery's character wills his apartment to his protege.  His keys are given to the boy by his attorney.  Sean Connery's brother's old dogtags and a leather/metal fob act as his keychains. 

Drive

Ryan Gosling's character is a professional stunt driver and a driver for criminals.  He has a white rabbit's foot keychain.  It is shown when his is driving with his love interest.

The Man from Nowhere

The main character is forced to carry out a mission by the villains.  He receives a key to a transit station locker.  The blue acrylic keychain shows it is locker number 48.

Regular Show

Mordecai and Rigby are taking care of some ducklings.  They try to give them away but decide not to.  Then the man who wanted them comes back to kidnap them.  He has a ducky keychain adding to his creepiness.

The Raid: Redemption

In the beginning of the movie the swat team gains entrance to the enemy controlled apartment building by using a residents keys.  His room number fob and bottle opener keychain can be clearly seen.

Haywire

Mallory Kane as played by Gina Carano gets a young man to help her escape by using his car.  He tosses her his keys and while they can only be seen for a moment they are there.

I personally own this prop and am proud to have it.

Shawshank Redemption

Tim Robbins' character Andy Dufresne locks a guard in the bathroom in order to play opera on the prison P.A..  The keychain is a simple leather fob. 

ZZ Top Music Videos

A running theme in ZZ top music videos is the men give a loser guy the keys to their car which changes the young man's luck.  The keychain on their keys is their logo with two z's.

The Pirates! Band of Misfits

In this stop motion movie the villain's chef has a key rack and featured on it are a garlic keychain and cat's paw keychain.

Pulp Fiction

Bruce Willis' character takes his slain enemies keys and his motorcycle.  The Z stands for Zed. 

Dumb and Dumber

Jim Carrey is driving his limo to the airport and his pink number one keychain is there with him.

Casino Royale

Daniel Craig as James Bond is playing poker with one of the villains and goads him into betting his prized Aston Martin.  The villain bets his car by symbolically putting his Aston Martin keychain into the pot.

A terrorist bomber tries to blow up a gas truck and jet with his bomb keychain.  It appears to be a flashlight but with a twist of the top the bomb is armed.  Bond tricks the villain and clips the carabiner to his belt blowing up the bad guy.

Ace Ventura

Jim Carrey as Ace with his eight ball keychain.  He warns his pets to hide from his landlord by jangling his keys before he opens his door.

The character Roger Pedactor is very superstitious and he always carries a rabbit's foot keychain with him.

Trading Places

Dan Ackroyd's character Louis empties his pockets and is framed with marked money.  His keys and keychain are on the table as well.

The Man Who Knew Too Much

A hotel keychain which is given to the main character to find an important note.