Answer 1: FILM — 4 letters
Trace FILM from row 2, column 2. Move up to row 1, column 2, then turn right through row 1, column 3 and row 1, column 4. The letters read F → I → L → M. This compact route makes one upward move followed by two rightward moves, so it has one turn and two straight segments.
Follow these cells in order: 1 at row 2, column 2; 2 at row 1, column 2; 3 at row 1, column 3; 4 at row 1, column 4. Three of its cells visit an edge, but none visits a corner. The starting cell has three open orthogonal neighbors, while the ending cell has two. Completing this entry assigns four cells and leaves 18 open cells for the remaining words.