Russell Crowe has vowed to cut back on his career commitments after spending several weeks separated from his children while at work.

The Gladiator star has spent a large part of 2012 on film sets, including the movie adaptation of hit musical Les Miserables, and the heavy workload has taken its toll on his personal life, with Crowe reportedly splitting from wife Danielle Spencer last month (Oct12).

The actor recently wrapped Darren Aronofsky's biblical epic Noah and is preparing to shoot Winter's Tale with Will Smith, but he regrets taking on so many jobs as he desperately misses his sons, Charles, eight, and six-year-old Tennyson.

In a post on his page, the actor writes, "Starting on another film set tomorrow. I need to go home & be with my children. Cannot believe how fkd (f**ked) up my schedule has become this year."

He then promised to spend more time with his kids, after one follower, a travelling salesman, told the actor he shares the same problem.

Crowe tweeted, "I sympathise. I haven't seen mine (my children) since late September. Maybe 40 days with them for the year. Won't happen again. All the best."