This study explores the challenges involved in translating speech acts, particularly commissive and, when necessary, assertive acts in the detective film genre, using the English and Uzbek versions of Sherlock Holmes as a case study. The intricate dialogue and culturally loaded interactions typical of detective narratives present significant obstacles for translators. Adopting a pragmatic framework, this research analyses how commissive speech acts (such as promises, threats, and offers) are rendered in Uzbek and examines the extent to which their illocutionary force is preserved. Assertive acts (statements, claims) are also considered to support the analysis, where relevant. The findings reveal frequent shifts in meaning, tone, and politeness levels, often influenced by linguistic and cultural norms. Special attention is given to translation strategies like modification, omission, and functional equivalence, and how these choices impact the original communicative intent. This study offers practical insights into audiovisual translation practices and suggests ways to enhance the fidelity and pragmatic effectiveness of subtitles and dubbing in cross-cultural film translation.