Los Angeles Times by Noel Murray

The movie’s most memorable material is also more grounded.

Variety by Dennis Harvey

Though professionally smooth in execution, Semper Fi has the frustrating sum impact of a movie at fundamental conflict with itself.

RogerEbert.com by Sheila O'Malley

Semper Fi is best when it sticks with the journeys of the individual characters, each with their own backstory and struggles. These men have always known each other. But something goes wrong along the way, and Semper Fi suddenly decides it wants to be another kind of movie. The transition doesn't work.

The Hollywood Reporter by Frank Scheck

The two elements never mesh convincingly, proving neither substantial enough to work as compelling drama nor sufficiently suspenseful as action-thriller.

TheWrap by William Bibbiani

It gets through its storyline and makes its underscrutinized points about fidelity — it’s right there in a title — and then it’s over, and the only thing we have to show for it is a missed opportunity to let these characters reveal their inner selves for more than three minutes.