American Animal is a captivating and intense film directed by Matt D'Elia, who also stars in the movie alongside Brendan Fletcher and Mircea Monroe. Released in 2011, this independent dark comedy-drama is a roller-coaster of emotions and psychological exploration, with a plot that reinforces the idea of the human spirit's resilience and the ability to confront deep existential crises.

The movie revolves around Jimmy, played by Matt D'Elia, a terminally ill young man who has insulated himself from the outside world in his Los Angeles apartment, living off his parents' wealth. His existence is highlighted by self-indulgence and a series of party-filled days that he shares with his unemployed roommate and best friend, James (Brendan Fletcher).

However, the film isn't just about wild parties and extravagant fantasies. The screenplay dives into the psyche of its protagonist, exploring themes of life, death, reality, and friendship. D'Elia brilliantly portrays Jimmy's rapidly diminishing health and the consequential existential crisis with a touch of dark humor that effectively lightens the atmosphere during some particularly serious moments.

The narrative takes an interesting twist when James announces his plans to start working. This sends Jimmy into a cycle of denial and manic behavior as reality interrupts his dream-like lifestyle, threatening the bond between the two friends. The premise cleverly encapsulates a person’s denial and rage against change and impending doom, subtly touching upon the universal fear of mortality and the inevitable end.

Mircea Monroe plays the part of Angela, Jimmy's casual love interest, who appears to be immune to his outlandish behavior. Through her character, the film sheds light on toxic relationships, emotional repression, and the focal microcosm, Jimmy's distorted worldviews.

American Animal is a remarkable sample of indie filmmaking. The director uses mellow color schemes, peculiar costumes, and carefully selected props that create an ambience of 'kitsch luxury'. This aesthetic touch emphasizes the pervasive feeling of detachment from reality, echoing what Jimmy feels every day. It's worth noting the extravagant use of the English language used by the protagonist, Jimmy. His eloquent, even Shakespearean at times, lines stand as metaphors for his inner world, offering a deeper glimpse into his character.

D'Elia's debut feature as a Hollywood director doesn't merely entertain, it also portrays a candid representation of the consequences of repressed fear, loneliness, and abandonment. The nuances of characters and interpersonal dynamics make it an engaging watch.

The performances are stellar, with D'Elia and Fletcher exhibiting remarkable acting skills. Their portrayal of the challenging emotions and complex personalities of their characters is spot on. Monroe does a fantastic job with her supporting role, perfectly illustrating catalysts for the interactions and conflicts in this unconventional movie.

The narrative style of American Animal is unconventional, pushing boundaries to deliver a challenging yet brilliant cinematic experience. Dark humor is skillfully scattered through the narrative, while bursts of drama and psychological insights keep viewers engrossed throughout the movie.

American Animal sports an applause-worthy screenplay and direction, and successfully offers a striking exploration of life's most profound and often unasked questions. Despite its dark undertones, it packs the punch of a comedy, coupled with a close and raw look at human relationships and frailties. It's definitely a film for audiences seeking a thought-provoking cinematic experience.