This work presents the findings from a wall-resolved large-eddy simulation (WRLES) study of a canonical gas turbine film cooling configuration performed using a high-order spectral element computational fluid dynamics (CFD) solver known as Nek5000. In particular, flow over a flat plate with a single row of 7-7-7 shaped cooling holes (represented by a single hole with periodic boundary conditions in the spanwise direction) was examined. Numerical results for the baseline case comprised of blowing ratio (BR) of 2, density ratio of 1.6, inlet freestream Reynolds number of 6000, and 30° cooling hole orientation relative to the mean flow were compared with available experimental data. Thereafter, simulations for hole angles of 25°, 35°, and 40° were performed (at BR = 2) to analyze the impact of hole orientation on the adiabatic cooling effectiveness profiles; blowing ratio was also varied (keeping the cooling hole angle fixed at 30°) to investigate its impact on adiabatic effectiveness. With respect to cooling hole angle, it was found that the 30° case had the best peak cooling effectiveness, whereas the 25° case exhibited a broader effectiveness profile with a lower peak due to the plenum flow being more aligned with the bulk flow. On the other hand, lower blowing ratio cases showed a wider film cooling effectiveness profile, but lower overall cooling effectiveness downstream of the cooling hole due to the specifics of the chosen configuration.