ID3 vTOPE NPRTCOM Mark Jordan LeganTALB Day to DayTIT2 K Slate's Summary Judgment: 'The Brothers Grimm,' 'Undiscovered,' 'The Cave'TCOP 2005TRCK 10TCON ReviewsCOMM R nprComment Fairy tales, struggling actors and stranded scientists want your movie dollars this weekend -- but are any of them worth the cash? Slate contributor Mark Jordan Legan looks at what the critics are saying about this week's new movie releases, including The Brothers Grimm, Undiscovered and The Cave.TYER 2005TPE1 NPR P , ^&