Published: Jun 29, 2011 7:32 PM EDT
Updated: Jun 29, 2011 6:33 PM EDT

LOS ANGELES (AP) - The giant "Transformers" robots have shrunk a bit in the early going at the box office.

Distributor Paramount Pictures says "Transformers: Dark of the Moon" launched with $13.5 million domestically in screenings Tuesday night and Wednesday morning.

That's less than the $16.6 million that the second of the three "Transformers" flicks, "Revenge of the Fallen," took in from midnight screenings alone two years ago. "Revenge of the Fallen" went on to top $400 million domestically and $800 million worldwide.

"Dark of the Moon" pulled in $5.5 million from screenings that started at 9 p.m. or later Tuesday at about 2,700 theaters. The movie added $8 million at about 3,000 cinemas in post-midnight showings overnight.

Paramount has expanded the movie domestically to about 4,000 theaters.

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