We know "Luck" is being filmed at Santa Anita race track, but I just discovered this post, which is unfortunately retrospective, as it gives a "Luck" filming location on the 17th May. But if you are keen to see it in the making, you may want to keep an eye on this site (though I can't see anything posted for future dates):
http://www.onlocationvacations.com/2011/05/16/tuesday-may-17-filming-locations-in-atlanta-nyc-l-a-more-including-3-stooges-white-collar-true-blood/
May 17th
• Luck, a new HBO series, is filming at 2632 E. Washington Bl, Pasadena.
