Michelle, mother of Heath Ledger's six-year-old daughter, was on a private jet heading from New York to Detroit when her team got the pilot to circle for 90 minutes so she could get extra sleep, according to Page Six.
'They had the plane circle so she could sleep as long as possible,' a source said.
'Then she went straight to the set. She's had 5 a.m. call-times.'
Page Six explained: 'Between shooting Disney's Oz: The Great and Powerful, opening the Weinstein Co.'s My Week With Marilyn and being a mum to a 6-year-old, Michelle doesn’t get much sleep.'