I saw it yesterday. I agree -- OK, but not great. Rather dark, in the genre of "House of Games", which has better writing and a more intriguing plot.

Croupier uses a John Huxley roulette wheel and the BJ layout also had Huxley's name on it. I assume the chips were provided by Huxley as well. The roulettes were generic designs (as you mentioned) in 7-8 colors, placed on the layout by players. (I always thought the Brits used the French Roulette system with chips placed by the dealer?) The value chips were of 2 types -- a hot-stamped/4-inserts version with denominations up to L100; also a center-insert version with a black logo that looks something like a lion rampant (?). In one of the close-ups I could see the "Jockey" chip mold that Huxley distributes.

One odd bit: the lead actor has to show his proficiency in dealing chips before being hired, including sorting and stacking 3 colors of mixed chips. (I suspect done by an experienced "hands-double" specialist. But then, when he actually deals in the casino, they use a chip sorting machine on the roulette table. So why was it important to sort & stack chips in the first place?

On a scale of 1 to 10 chips, I give the movie 6 chips. <g>