People who became familiar with Ingmar Bergman’s films through his well-known works from the late 1950s might be hesitant to explore his earlier output. It's easy to assume that his initial movies were simply stepping stones, where he lacked creative control and hadn’t yet developed his signature style. I certainly felt this way watching "Summer with Monika" from 1952. However, I was pleased to discover that his even earlier film, “Summer Interlude,” is a remarkably strong piece of work; made in 1950, it foreshadows what would become Bergman’s later achievements. The movie begins by introducing us to Marie (Maj-Britt Nilsson), a successful ballerina living in Stockholm who seems unhappy and disconnected from those around her. As she travels by ferry through the Stockholm archipelago, the film transitions into a flashback sequence that reveals the story behind her current state. Thirteen years prior, while still studying and on summer break at her family’s vacation home, she had a brief romantic encounter with Henrik (Birger Malmsten). This was a significant—and almost intimate—experience for both of them, and Bergman portrays it with the same sense of longing that an adult feels when remembering those intense days of youth, mirroring Marie's perspective. Still, summer doesn’t last forever, and circumstances prevent them from remaining together. As I mentioned, this film demonstrates mature themes characteristic of Bergman’s later work: questions about faith and the silence of God, difficulties in relationships and the sense that people hide their true selves, and, naturally, the fleeting beauty of a Nordic summer. However, I wouldn't consider it to be among his absolute greatest films. The conclusion, after returning from the flashback to the present day, feels off somehow; the pacing becomes suddenly awkward, and Bergman’s message seems unclear. Despite that, this is an enjoyable film overall, with many worthwhile details. Nilsson’s performance is playfully flirtatious, and the level of openness about sexuality is surprising; in fact, it's more bold than "Summer with Monika," which has a larger international reputation for its frankness. The supporting performances by Georg Funkquist and Renée Björling as friends of Marie’s family add depth to the film; their failed marriage provides a poignant contrast to the passionate romance of the young lovers.

Source on TMDB