QMx Interactive has just released some cool movie-style posters commemorating the oldschool Star Trek series that aired from 1966 to 1969, including the one you see above, The Trouble with Tribbles, which is my favorite.
Recalling the style of 1960s-era movie posters, pulp novel covers, comic books and advertisements, these Star Trek art prints are the work of artist Juan Ortiz, who was commissioned by CBS.
[Star Trek: The Original Series Art Prints – Set 3]