Simplify the following text for a Grade 4 native English-speaking person.
Original: In April 2005 , MGA Entertainment filed a lawsuit against Mattel , claiming that the `` My Scene '' line of Barbie dolls had copied the doe-eyed look of Bratz dolls .
Simplified: Bratz are a brand of dolls with large heads . The toy company MGA Entertainment makes Bratz , and the first dolls were sold in 2001 .