Sea of Monsters font here refers to the font used in the poster of Percy Jackson: Sea of Monsters, which is a 2013 American fantasy-adventure movie based on the novel of the same name by Rick Riordan.
The font used for the movie title in the poster is probably ITC Benguiat, which is a decorative serif typeface designed by Ed Benguiat and released by the International Typeface Corporation in 1978. You can find more details about the typeface here.
Download ITC Benguiat Font
The ITC Benguiat font identified above is not available for free, please follow the link above and purchase the font. Meanwhile, you can take a look at our collection of fonts for cars, pop music and apparel as well as round-ups of new & fresh fonts around the web.