Complex sentence: It didn't make $1 million on a single weekend until its fourth weekend and broke the $2 million weekend mark in eleventh weekend and amassed a whopping $11 million on its 1,619 screen Labor Day weekend, which was its twentieth weekend.
Split into simpler sentences: It didn't make $1 million on a single weekend until its fourth weekend. It broke the $2 million weekend mark in eleventh weekend and amassed a whopping $11 million on its 1,619 screen Labor Day weekend, which was its twentieth weekend.