A Very Long Engagement (2004)

In the aftermath of World War I, determined Frenchwoman Mathilde embarks on a relentless quest to uncover the fate of her missing fiancé. Despite the widespread belief that he's gone forever, she clings to hope, driven by an unyielding desire to unearth the truth about the love of her life. Along the way, she unravels unexpected revelations that challenge her perceptions and test her resolve.