Actress Kate Beckinsale and director Len Wiseman are calling it quits after 11 years of marriage. Sources have confirmed that the two couples have been separated for months.

According to Us Weekly, the Underworld actress had been waiting until filming wraps in late November to talk to Wiseman in person and discuss whether or not they would formally file for divorce. The only thing she asked of Wiseman was that he be "discreet" if he did step out with other women in the meantime.

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Both 42, Beckinsale and Wiseman have been separated for some time now and was spotted out in public last June. In October, a source say to ET that Wiseman had been staying at the Sunset Marquis hotel.

Us Weekly spills out that, "they tried to make it work but they end up falling back into old habits and fighting."

Apparently, while the actress was busy shooting Underworld 5 in Prague, while her ex-husband was also having date-time with model Cj Franco, the pair was photographed together on Oct. 6, and again on Oct. 19 in Los Angeles.

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Sources say, Beckinsale was not that happy when her ex-husband was not discreet of dating other women.

Beckinsale and Wiseman, met on the set of Underworld in 2003. By May 9 in 2004, the couple decided to tie the knot at Hotel Bel-Air and have no children together. Beckinsale is the mother of a 16-year-old daughter from a previous relationship.

"Her daughter Lily feeling loved and protected is her ultimate priority," the second source tells Us Weekly. She doesn't want Lily to be upset and hurt by his being so disrespectful."