Jennifer Lawrence trips and falls down wins Best Actress Academy Awards 2013 acceptance speech [HD] Jennifer Lawrence trips and falls down wins Best Actress Academy Awards 2013 acceptance speech [HD] Jennifer Lawrence trips and falls down wins Best Actress Academy Awards 2013 acceptance speech [HD] Jennifer Lawrence trips and falls down wins Best Actress Academy Awards 2013 acceptance speech [HD] Jennifer Lawrence trips and falls down wins Best Actress Academy Awards 2013 acceptance speech [HD] Jennifer Lawrence trips and falls down wins Best Actress Academy Awards 2013 acceptance speech [HD]