I feel that these types of lawsuits haven't been happening lately, but they seemed quite prevelant 15 years ago. Perhaps my memory is just fuzzy.

SAN ANTONIO (AP) Tommy Lee Jones is suing the makers of "No Country for Old Men" for more than $10 million that the Oscar-winning actor claims he is owed for starring in the 2007 hit crime thriller.

 

The lawsuit against Paramount Pictures claims that Jones was promised "significant box-office bonuses" and other compensation depending on the success of the film, which went on to make more than $160 million.

....

The suit says Jones was paid a reduced upfront fee in joining the film, and that his contract had known errors not corrected before the movie was made. 

http://movies.yahoo.com/mv/news/ap/20080907/122079342000.html