Sequels are having a rough go at the domestic box office lately as under-performers "Alice Through the Looking Glass" and "X-Men: Apocalypse" are projected to drop significantly, leaving the tepidly-reviewed "Teenage Mutant Ninja Turtles: Out of the Shadows" in first place with underwhelming estimates.

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While the Michael Bay-produced "Ninja Turtles" sequel is expected to take the cake this weekend, according to Deadline, it's still projected to have a less-than stellar opening of roughly $30-35 million -- well-behind the $65.6 million debut of the original film in 2014.

Bryan Singer's "X-Men: Apocalypse" is expected to drop 55-60% this weekend for a $26-29.6 million sophomore showing. The lackluster opening weekend saw a $86.3 million debut over a five-day stretch.

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Rounding out the top five, newcomer "Me Before You" is projected to come in third with $12-14 million, followed by "Alice" in fourth -- dropping 60% -- with $10.7 million, and the Lonely Island comedy "Pop Star: Never Stop Never Stopping" in fifth with a $3.5-4.5 million debut from 2,300 theaters.