Dark Hazard (1934) Edward G. Robinson, Genevieve Tobin, Glenda Farrell

Jim is a compulsive gambler. He meets Marge at a boarding house and they get married. His gambling causes problems. When he runs into old flame Valerie, Marge leaves him. After a few years he returns, but she is now in love with old flame Pres. Jim buys racing dog Dark Hazard and makes a fortune which he loses on roulette.