I am sure I have sent this to you before, but I believe $5 movie prop chips can be found from the following:

Boiler Room 2000
Casino 1995
Cobb 1994
Knight Rider
Las Vegas
Lucky You 2007
Ocean's Eleven 2001
Ocean's 13 2007
Pretty Hattie's Baby 1991
Rounders 1998
Rush Hour 2 2001
The Hangover 2009
The Punisher 2004
Tomcats 2001
Viva Laughlin
Viva Rock Vegas 2000